diff options
| author | James Hogan <james.hogan@imgtec.com> | 2017-03-14 10:15:22 +0000 |
|---|---|---|
| committer | James Hogan <james.hogan@imgtec.com> | 2017-03-28 14:53:48 +0100 |
| commit | 607ef2fdeb95ae63322321ca15b41f76870f48f1 (patch) | |
| tree | 1efe20ac79dc2c112ee18c0a4de6f0713a91d6c7 /arch/mips/kvm | |
| parent | a517c1ad65921765d5ac8594567c7bb6f352655c (diff) | |
KVM: MIPS: Add callback to check extension
Add an implementation callback for checking presence of KVM extensions.
This allows implementation specific extensions to be provided without
ifdefs in mips.c.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Diffstat (limited to 'arch/mips/kvm')
| -rw-r--r-- | arch/mips/kvm/mips.c | 3 | ||||
| -rw-r--r-- | arch/mips/kvm/trap_emul.c | 17 |
2 files changed, 18 insertions, 2 deletions
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 36561df8a7a7..78d58c2528a9 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1043,7 +1043,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_READONLY_MEM: case KVM_CAP_SYNC_MMU: case KVM_CAP_IMMEDIATE_EXIT: - case KVM_CAP_MIPS_TE: r = 1; break; case KVM_CAP_COALESCED_MMIO: @@ -1075,7 +1074,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) r = cpu_has_msa && !(boot_cpu_data.msa_id & MSA_IR_WRPF); break; default: - r = 0; + r = kvm_mips_callbacks->check_extension(kvm, ext); break; } return r; diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c index 0e3d260aafcb..db3c48634eda 100644 --- a/arch/mips/kvm/trap_emul.c +++ b/arch/mips/kvm/trap_emul.c @@ -488,6 +488,22 @@ static int kvm_trap_emul_handle_msa_disabled(struct kvm_vcpu *vcpu) return ret; } +static int kvm_trap_emul_check_extension(struct kvm *kvm, long ext) +{ + int r; + + switch (ext) { + case KVM_CAP_MIPS_TE: + r = 1; + break; + default: + r = 0; + break; + } + + return r; +} + static int kvm_trap_emul_vcpu_init(struct kvm_vcpu *vcpu) { struct mm_struct *kern_mm = &vcpu->arch.guest_kernel_mm; @@ -1238,6 +1254,7 @@ static struct kvm_mips_callbacks kvm_trap_emul_callbacks = { .handle_fpe = kvm_trap_emul_handle_fpe, .handle_msa_disabled = kvm_trap_emul_handle_msa_disabled, + .check_extension = kvm_trap_emul_check_extension, .vcpu_init = kvm_trap_emul_vcpu_init, .vcpu_uninit = kvm_trap_emul_vcpu_uninit, .vcpu_setup = kvm_trap_emul_vcpu_setup, |